HI, MY NAME IS LEO
AND I’M A
Front-End / UI Developer
And Graphic Designer.
Since my very first contact with programming, I’ve been dedicating my days to solving problems and translating ideas into high-impact interfaces. Feel free to explore what I’ve been building.
NOT JUST CODE — WELCOME TO MY
Articles
Throughout 2023, I started writing about what I’ve learned — to help beginners, curious minds, and experienced developers who enjoy refined, honest insights. Here are a few of them:
EVERY GREAT DEVELOPER NEEDS STRONG QUALITY
Projects.
Here are some of my most meaningful projects — created for clients, companies, collaborations, and personal development. Feel free to explore the details and check out each one.
(Mobile users: just swipe!)
LeoDev — Personal Website
My official website: minimalist visuals, neon contrast, and smooth micro-interactions showcasing UX, motion, and frontend engineering with personality.
Linfomaster Mentorship
A strategic landing page created for a high-performance mentorship program. Clean aesthetic, persuasive structure, and conversion-focused design.
FranCar
A hybrid Angular + Tailwind application designed for a fictional car dealership. Organized catalog, detailed pages, and a clean, functional interface.
Debsigner
A modern portfolio built for a graphic designer, featuring fluid navigation, visual storytelling, and a layout crafted to highlight projects with clarity and impact.
A DEVELOPER IS ONLY AS GOOD AS THEIR
Skills.
Technical or interpersonal — skills are skills. Below is a combination of my technical and personal abilities.
PROFESSIONAL
SKILLS
-
Javascript
My very first programming language, originally used to study algorithms. Today it's one of my main tools for Front-End development.
ReactJS
My favorite library. It has a simple learning curve, yet scales beautifully with frameworks like Next.js.
-
Angular
My first framework — learned in a traditional, self-taught, under-pressure scenario for a job test. Surprisingly fell in love with it.
NextJS
The powerful React/Vercel framework that brings SSR and full-stack capability into one ecosystem.
-
Typescript
The “big brother” of JavaScript — static typing, organization, and structure. Makes everything feel safer and cleaner.
Databases
Experience with SQL (MySQL) and NoSQL (MongoDB). A dev eventually needs to master data handling to build full-stack apps.
- Inkscape
My go-to for vector creation and editing, producing scalable and high-quality visual assets.
- Figma
My main UI/UX environment for prototypes, layouts, and team collaboration.
- Canva
Perfect for fast, impactful visuals — from design pieces to social templates and mockup videos.
- CapCut
My tool for promotional videos, showcasing project outcomes and delivering polished visual materials.
-
Rational Thinking
I'm the type who thinks things through multiple times before making a decision — extremely detail-oriented when solving client needs.
Creative Mind
Art inspires my work. As a Front-End/UI Developer, I channel creativity into interfaces that feel alive and meaningful.
-
Communication
Always loved languages — learned English and Spanish as a kid, and expanded multilingual communication throughout my career.
Good Mood Always
Clients, deadlines, daily calls — it's hard to keep a smile. That's exactly why I do. Bringing good energy is part of my work.
DESIGN
TOOLS
PERSONAL
SKILLS
YOU'VE SEEN WHAT I CAN BUILD, NOW LEARN MORE ABOUT
Who I Am
My name is Leandro Medeiros de Sousa, a Brazilian developer born in Rio de Janeiro. My first real contact with programming came through Harvard’s CS50 course, where I learned C and the foundations of logic and problem-solving.
I later dedicated myself to Front-End Development because I’ve always been driven by creativity and visual expression. When I discovered that UI development and design walk side by side, I embraced both — and every day I only confirm how naturally these two worlds connect.
GET TO KNOW MY
Hobbies
I’m a musician since 2016 — I play three instruments: Acoustic Guitar, Electric Guitar, and Bass. I also enjoy singing. My personal taste includes Metal, Bossa Nova, Samba, R&B, and Jazz.
I’ve written poetry since 2018, touching themes like love, life, truth, and the mysteries in between.
I’m a huge football fan — a passionate Flamengo supporter. Once Flamengo, always Flamengo.
I’m also a gym regular. It’s been two years now, and I’ve never felt like stopping. Training keeps both my body and my mind sharp. Why would I quit?
TALKING ABOUT MYSELF IS EASY, BUT YOU PROBABLY WANT TO KNOW
What People Think
About Me
- LF
Lucas Fonseca
@lucasrlfonsecaFull Stack Developer
“Leo is extremely hardworking and productive. His ability to learn exactly what he needs to tackle new challenges is impressive. His communication is truly 'out of the box'.”
- VL
Victor Lucena
@victorlucenaAngular + Java Developer
“Leo is an excellent developer. He shows great dedication and care for his projects, along with fast adaptability to different technologies.”
- MS
Matheus Santana
@omatheussantSoftware Engineer
“Leo is a highly skilled developer. For him, there’s no easy or hard task — there’s only what needs to be done. A tech-driven mind that learns anything if given time.”
- DV
Debora Viana
@deboravianaGraphic Designer / CEO at DebSigner
“Leo is an incredible person who chases his goals despite obstacles. His hunger to learn is beautiful — and he still helps others along the way. A true example.”
INTERESTED?
Let's Work Together
Whether you need a high-impact website or a modern visual identity, feel free to reach out. I'm always open to new challenges.